Black Diamond, Washington Phone Lookup

Q: How do I look up a phone number in Black Diamond, Washington?

Enter the full 10-digit number into the search box and click Search. 411FCC returns the owner's name, location, carrier, and line type. The lookup covers all 1 area code serving Black Diamond.

Q: What types of phone numbers are in Black Diamond?

Black Diamond has both wireless and landline numbers. Approximately 5% of prefixes are wireless, with 95% being landline or VoIP. 411FCC results identify the line type and carrier for any number searched.

Find the owner of any phone number in Black Diamond, Washington.

What Phone Numbers Are in Black Diamond, Washington?

Looking up a phone number in Black Diamond, Washington? Enter any 10-digit phone number in the search box above to find the owner's name, address, and carrier information. Black Diamond is served by 1 area code and has 4 active phone prefixes.

1 Area Code

4 Phone Prefixes

5% Wireless

95% Landline

Area Codes Serving Black Diamond

Phone numbers in Black Diamond, Washington use the following area code: 360.

Top Phone Carriers in Black Diamond

The most common phone service providers in Black Diamond include:

Onvoy, Llc - Wa
Qwest Corporation
Teleport Communications America, Llc - Wa
Comcast Ip Phone, Llc
Astound Broadband, Llc - Wa

Data current as of March 2026

Nearby Cities in Washington

Other cities in Washington that share area codes with Black Diamond:

Black Diamond at a Glance

5,961 Population

38.1 Median Age

$141,383 Median Income

2,442 Housing Units

86% Homeownership

Demographics

White 67.8%
Black 0.4%
Hispanic 7.9%
Asian 17.9%
Other 6%

Financial Profile

$146,270 Avg. Income per Return

$105,871 Avg. Wages per Return

4,090 Tax Returns Filed

1 ZIP Codes

Frequently Asked Questions

What Area Codes Serve Black Diamond, Washington?

Phone numbers in Black Diamond, Washington use 1 area code: 360. These area codes are shared with other cities in the region. Black Diamond has 4 active phone prefixes assigned to local carriers. If you received a call from one of these area codes, enter the full 10-digit number into the search box above to find out who called. The area code alone tells you the general geographic region, but a full reverse phone lookup on 411FCC reveals the specific owner, carrier, and line type associated with the number.

How Do I Look Up a Phone Number in Black Diamond, Washington?

To look up any phone number in Black Diamond, enter the full 10-digit number into the search box at the top of this page and click Search. 411FCC returns available information about the number including the registered owner's name, location, phone carrier, and whether it is a wireless cell phone, landline, or VoIP line. The lookup covers all 1 area code serving Black Diamond and works for numbers from every carrier in the area. Results appear within seconds. 411FCC has maintained its phone number database since 2003.

What Types of Phone Numbers Are in Black Diamond?

Black Diamond, Washington has both wireless and landline phone numbers. Approximately 5% of phone prefixes in the area are classified as wireless (cell phone), with the remaining 95% being landline or VoIP. Major carriers serving the area include Onvoy, Llc - Wa, Qwest Corporation, Teleport Communications America, Llc - Wa. When you search a phone number on 411FCC, the results identify the line type and carrier, which helps distinguish personal cell phones from business landlines and identify VoIP numbers commonly used by automated calling systems.